A simple future-based async library for python.

Project description

This is a development version of Duet and may be unstable.

For the latest stable release see https://pypi-hypernode.com/project/duet/.

duet

A simple future-based async library for python

Duet takes inspiration from the amazing trio library and the structured concurrency approach to async programming that it uses. However, duet differs from trio in two major ways:

Instead of a full-blown implementation of asynchronous IO, duet relies on the Future interface for parallelism, and provides a way to run async/await coroutines around those Futures. This is useful if you are using an API that returns futures, such as RPC libraries like gRPC. The standard Future interface does not implement __await__ directly, so Future instances must be wrapped in duet.AwaitableFuture.
duet is re-entrant. At the top level, you run async code by calling duet.run(foo). Inside foo suppose you call a function that has not yet been fully refactored to be asynchronous, but itself calls duet.run(bar). Most async libraries, including trio and asyncio, will raise an exception if you try to "re-enter" the event loop in this way, but duet allows it. We have found that this can simplify the process of refactoring code to be asynchronous because you don't have to completely separate the sync and async parts of your codebase all at once.

Installation

Install from pypi:

pip install duet

Note

duet is not an official Google project.

Project details

Release history Release notifications | RSS feed

0.3.0.dev20240320150209 pre-release

Mar 20, 2024

0.3.0.dev20240209143151 pre-release

Feb 9, 2024

0.2.9

Jul 26, 2023

0.2.9.dev20230712233414 pre-release

Jul 12, 2023

0.2.9.dev20230622135328 pre-release

Jun 22, 2023

0.2.8

Apr 12, 2023

0.2.8.dev20230408103252 pre-release

Apr 8, 2023

This version

0.2.8.dev20221107154801 pre-release

Nov 7, 2022

0.2.8.dev20221107153910 pre-release

Nov 7, 2022

0.2.8.dev20221006085443 pre-release

Oct 6, 2022

0.2.8.dev20220816215455 pre-release

Aug 17, 2022

0.2.8.dev20220803230221 pre-release

Aug 4, 2022

0.2.8.dev20220803224901 pre-release

Aug 4, 2022

0.2.8.dev20220803222444 pre-release

Aug 4, 2022

0.2.8.dev20220731194825 pre-release

Aug 1, 2022

0.2.8.dev20220715162054 pre-release

Jul 15, 2022

0.2.8.dev20220623112742 pre-release

Jun 23, 2022

0.2.8.dev0 pre-release

Nov 7, 2022

0.2.7

Jun 18, 2022

0.2.7.dev20220617131325 pre-release

Jun 17, 2022

0.2.6

Apr 21, 2022

0.2.6.dev20220421160413 pre-release

Apr 21, 2022

0.2.5

Mar 17, 2022

0.2.5.dev20220317123136 pre-release

Mar 17, 2022

0.2.5.dev20220317120955 pre-release

Mar 17, 2022

0.2.4

Mar 17, 2022

0.2.4.dev20220317090531 pre-release

Mar 17, 2022

0.2.3

Nov 1, 2021

0.2.2

Oct 21, 2021

0.2.2.dev20210917163015 pre-release

Sep 17, 2021

0.2.2.dev20210917124656 pre-release

Sep 17, 2021

0.2.2.dev20210902140543 pre-release

Sep 2, 2021

0.2.2.dev20210902130221 pre-release

Sep 2, 2021

0.2.1

Aug 25, 2021

0.2.0

Jul 12, 2021

0.0.2

Sep 15, 2016

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